Shotshell Reload Calculator

Component quantities for shotshell reloading.

Shells to load

Powder charge (grains)

Shot weight (oz)

Powder cost per lb ($)

Shot cost per bag ($)

Shot bag weight (lbs)

Primer cost per 100 ($)

Wad cost per 250 ($)

Hull cost each ($)

Factory ammo cost/box ($)

Factory box size

Tab to move between fields

Reload cost per shell ($)

$0.35

Total reload cost ($)$35.38

Savings per shell ($)$0.05

Total savings ($)$4.62

Savings percentage11.5%

Total powder needed (lbs)0.26

Total shot needed (lbs)7.03

Factory Total Cost$40.00

Bags Needed1

How to Use This Calculator

Enter Shells to Load and your load data: Powder Charge in grains and Shot Weight in ounces.
Set component costs: Powder per lb, Shot per bag (and bag weight), Primers per 100, Wads per 250, and Hull cost.
Enter Factory Ammo cost per box and box size for comparison.
Review Cost per Shell, Total Reload Cost, Savings per Shell, Total Savings, and Savings Percentage.
Check Total Powder and Shot needed to confirm you have enough components on hand.

How the result changes with Shot bag weight (lbs)

Shells to load: Number of shotshells you want to reload.
Powder charge (grains): Powder charge per shell in grains (from reloading manual).
Shot weight (oz): Shot payload per shell in ounces.
Powder cost per lb ($): Cost of one pound of powder.
Shot cost per bag ($): Cost of one bag of shot.
Shot bag weight (lbs): Weight of one bag of shot in pounds.
Primer cost per 100 ($): Price for 100 shotshell primers.
Wad cost per 250 ($): Price for 250 wads.
Hull cost each ($): Cost per hull (often $0 if reusing fired hulls).
Factory ammo cost/box ($): Price of one box of factory ammunition for comparison.
Factory box size: Number of shells in a factory box.

Reload cost per shell ($): Total cost to reload one shotshell.
Total reload cost ($): Total cost of components for all shells.
Savings per shell ($): Savings compared to factory ammo, per shell.
Total savings ($): Total money saved by reloading instead of buying factory.
Savings percentage: Percentage saved compared to factory ammo price.
Total powder needed (lbs): Pounds of powder required for the batch.
Total shot needed (lbs): Pounds of shot required for the batch.

Identify Input Parameters
4 parameters
Shells to load = 100, Powder charge (grains) = 18.5, Shot weight (oz) = 1.125, Powder cost per lb ($) = 30 = 11 input(s) provided
Calculate Reload cost per shell
Reload cost per shell = totalReloadCost / shellsToLoad
0.3538 = $0.354
Calculate Total reload cost
Total reload cost = powderCost + shotCost + primerCost + wadCost + hullCost
35.38 = $35.38
Calculate Savings per shell
Savings per shell = factoryCostPerShell - costPerShell
0.0462 = $0.046